"Kids... Dad, can I have a drink of water?" joke

Little Lee was acting up, so he was sent to bed by his father. Five minutes later: "Da-ad..."
"What?"
"I'm thirsty. Can you bring me a drink of water?"
"No. You had your chance. Lights out."
Five minutes later: "Da-aaaad..."
"What?"
"I'm thirsty... Can I have a drink of water?"
"I told you NO! If you ask again I'll have to spank you!"
Five minutes later... "Daaaa-aaaad..."
"WHAT?!"
"When you come in to spank me, can you bring me a drink of water?"
(via Aiken Drum, Rodney & Cathy, HorridScopes)